postgres.yaml

apiVersion: v1
kind: Namespace
metadata:
  labels:
    app: postgres
  name: postgres
---
apiVersion: v1
kind: ConfigMap
metadata:
  name: postgres-cm
  namespace: postgres
data:
  POSTGRES_DB: db
  POSTGRES_USER: user
  POSTGRES_PASSWORD: pass
  PGDATA: /var/lib/postgresql/data/k8s
---
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: postgres-pvc
  namespace: postgres
spec:
  accessModes:
    - ReadWriteOnce
  storageClassName: longhorn-sc
  resources:
    requests:
      storage: 10Gi
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: postgres
  namespace: postgres
  labels:
    app: postgres
spec:
  replicas: 1
  selector:
    matchLabels:
      app: postgres
  template:
    metadata:
      labels:
        app: postgres
    spec:
      containers:
        - name: postgres
          image: postgres:latest
          imagePullPolicy: "IfNotPresent"
          ports:
            - containerPort: 5432
          envFrom:
            - configMapRef:
                name: postgres-cm
          volumeMounts:
            - mountPath: /var/lib/postgresql/data
              name: pgdatavol
      volumes:
        - name: pgdatavol
          persistentVolumeClaim:
            claimName: postgres-pvc
---
apiVersion: v1
kind: Service
metadata:
  name: postgres
  namespace: postgres
  labels:
    app: postgres
spec:
  selector:
    app: postgres
  ports:
    - port: 5432
      name: http
      protocol: TCP
      targetPort: 5432
  type: LoadBalancer
  loadBalancerIP: 10.0.0.145